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Brownells

Ar-15/M16 Magazine Coupler

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Molded Nylon

Magazine coupler for AR-15/M16 magazines

Binds Backup

Magazine directly to the magazine

Supports Fast

Reloads without moving your trigger

Three Steel

Bolts adjust retention force

Side-by-side Design

Staggered heights and fixed standoff

$21.99
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SKU: 080000511

Overview

This magazine coupler is designed to keep a backup AR-15/M16 magazine attached and ready for a fast reload when speed matters. Its side-by-side layout and adjustable retention help keep the magazines aligned and secure, while the included Top Round Protector adds a layer of protection for the spare magazine’s feed lips and top round. The molded nylon body and steel tension bolts give it a straightforward, purpose-built design for hard use, though it does add bulk compared with carrying magazines separately. It is a practical option for shooters who want a compact, immediately accessible spare magazine setup.

Why Hunters Choose the Brownells

Keeps Backup

Magazine attached for immediate reload

Adjustable Steel

Bolts let you set magazine

Side-by-side Design

Helps keep magazines aligned and

Fixed Standoff

Points reduce shifting and rattling

Includes Top

Round Protector to shield the

Key Features

  • Molded nylon magazine coupler for AR-15/M16 magazines
  • Binds a backup magazine directly to the magazine in the gun
  • Supports fast reloads without moving your trigger hand
  • Three steel bolts adjust retention force
  • Side-by-side design with staggered heights and fixed standoff points helps keep magazines aligned
  • Includes a Top Round Protector to shield feed lips and help keep out dirt

Best Used For

  • Hunters or shooters who want a backup magazine mounted for faster reloads at the range or in the field.
  • Users needing a side-by-side magazine setup with adjustable retention for secure carry during movement.
  • Those who prefer keeping a spare mag attached without shifting their trigger hand during reloads.
  • Shooters wanting added feed-lip protection and dirt shielding for a stored backup magazine.
  • Anyone using AR-15/M16 magazines who values a compact coupler for organized spare-mag access.

Specifications

ColorBlack
CompatibilityAr-15/M16
Height3 1/4 in (8.3 cm)
Length2 3/4 in (7 cm)
MaterialMolded nylon
Tension Adjustment BoltsSteel
Top Round Protector TrpIncluded
Width2 7/16 in (6.2 cm)

Pros

  • Keeps a backup magazine attached for immediate reload access.
  • Adjustable steel bolts let you set magazine retention force.
  • Side-by-side design helps keep magazines aligned and secure.
  • Fixed standoff points reduce shifting and rattling between magazines.
  • Includes a Top Round Protector to shield the backup magazine feed lips.
  • Top Round Protector detaches quickly with thumb pressure on the release tab.

Considerations & Trade-offs

  • Adds bulk and width to the rifle setup, which may affect how it carries or fits in some pouches and cases.
  • Retention is adjustable, but it may require setup and occasional checking to keep the magazines secured to your preference.
  • The side-by-side layout is designed for fast reloads, but it keeps the spare magazine attached to the rifle rather than separate for lighter carry.
  • Includes a Top Round Protector for the backup magazine, which adds another component to manage during loading and use.

Suggested Comparisons

  • AR-15/M16 magazines
  • Magazine pouches and carriers
  • Reload accessories
  • Tactical rifle accessories

Suggested Accessories

  • Magazine pouch
  • Cleaning kit
  • Spare magazine
  • Protective magazine cover

Frequently Asked Questions

What is this magazine coupler designed to do?

It binds a backup AR-15/M16 magazine directly to the magazine in the gun so a spare is ready for a faster reload.

Does it let me reload without changing my grip?

Yes. The description says it supports reloads without moving your trigger hand.

How is the magazine retention adjusted?

It uses three steel bolts to adjust retention force so the magazines stay secured together.

What does the Top Round Protector do?

The Top Round Protector (TRP) is included to protect the feed lips of the backup magazine, help prevent accidental dislodgement of the top round, and keep out dirt.

What are the listed materials and dimensions?

The coupler is molded nylon in black with steel tension adjustment bolts. Listed dimensions are 2 3/4 in. long, 2-7/16 in. wide, and 3 1/4 in. high.